Answer» | Region of the pond | Organisms living in that region | | Above the surface | dragonfly, mayfly and kingfisher, hovering above the pond and then resting over a bamboo pole or a stick jutting out of the surface of the pond. They get food from the surface of the pond. | | On the surface | whirling beetle, pond skater, larva of mayfly and dragonfly, Plants like pistia float on the surface completely while those like the lotus have roots going deep under. [Organisms on the surface are easily eaten up by others because there is little protection for them.] However, there is plenty of food and air. Fish usually come to the surface for food. | | Pond margins | Several grasses, frogs, cranes, crabs etc. Fish usually lay eggs here. | | Midwater | Great water boatman, leech and mosquito larva are found in this region. Fish and crabs also swim around this region. | | Bottom of the pond | This region has plants like Hydrilla and animals like mussels, flatworms and some maggots (larvae of some insects). Light is minimum here, but food, in the form of dead and decaying matter is plenty. |
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